Chemical fire-extinguisher.



PATENTED JULY 28, 1908.

Y W. A. HARLAND.

CHEMICAL-FIRE EXTINGUISHER.

'APPLIOATIQN FILED 00'125, 1907.

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WALTER A. HARLAND, OF JERSEY OITY, NEW JERSEY, ASSIGNOR TO GLOBE FIRE APPARATUS COMPANY, OF JERSEY OITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

CHEMICAL FIRE-EXTINGUISHER.

Specification of Letters Patent.

Patented July 28, 1908.

To all whom it may concern:

Be it known that I, WALTER A. HARLAND, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Chemical Flre-Extinguishers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 7

This invention relates to im rovements in chemical fire extinguishers 0 that ty e in which there is associated together a far e tank containin water, and a small bott e within said tan; containing a suitable acid, cooperating when discharged into the large tank to form a gaseous mixture under great pressure, enabling the operatorto control the discharge of the contents of the tank through a small pipe or tube, and thus efiec-tively apply the extinguishing a ent to the flame.

For the purpose of isclosure reference is had to the accompanying drawings illustrating a ractical embodiment of the invention in WhlCh like letters designate the same parts in the several views, and in which Figure 1 is a view in elevation of a fire extinguisher of this character, with the present invention, shown indotted lines, applied to the same. Fig. 2 is a local view of the hanger for the bottle, the outer cylinder being removed, and the head thereof for supporting the hanger being shown in section on the line of the plunger rod. 'Fi 3 is a section on the line 33 of Fi 2, lookmg in'the direction of the arrow, an Fig. 4 is a bottom plan view showing the gate sup ort for the bottle in its closed position in full ines and in an open position in dotted lines.

1 designates the usual form of outer cylinder having an outlet and pipe 2 therefor,and

a suitable handle 3, the cylinder 1 being provided with a short screw-threaded neck fitting into the internally screw-threaded head 4, provided with the usual form of protecting rim 5, which latter also acts as a means for handling the device.

6 designates any suitable longitudinallymovable plunger rod. In the drawings, Fig. 2, this lunger rod 6, instead of being screw-thread ed or otherwise operable, is shown as consisting simply of a shank longitudinally movable through the cap 5., pro vided with a suitably packed bushing 7, the

lower end of the shank being provided with a I reduced pin 8 supporting a stoppering means 9 preferably consisting of rubber, or other sultable non-corrosive material, and preferably being of a conical or tapering shape for a purpose hereinafter referred to. This plunger rod or stem is provided with a suitable operating handle 10.

Dependin from the head 5 is a suitably constructed Iianger for supporting a bottle 1 1, the bottle bein of the ordinary commercial type. In the drawings, this hanger support is illustrated as com rising two depending bars 12 bent outwardl y and downwardly, as at 13, to form a casin for the body of the bottle, and also provided with the annular band 14 having upwardly extending inwardly-bent fingers 15 for holding the bottle rigidly inposition against movement towards the head 5, and the lower ends of the bars 13 being provided with an annular base ring 16. On one side of this-base ring is formed an car 17, and on the opposite side is formed a circumferentially dlsposed hook 18 forming a slot 19 with the band 16 to receive a flat ring or gate 20, provided with an ear 21 pivoted to the ear 17. On the lower side, this hinged gate is provided with a lug 22 for opening same, and on the upper side is rovided with a slight projection 23 which wil slightly bind a ainst the lower edge of the band 16, and when the tongue portion 24 of the gate 20 is passed within the slot 19, this lug 23 will rest on the inside of the band 16 and hold the swinging gate 20 against ordinary displacement.

The rubber stopper may be secured to the stem 8 in any suitable way, and in the drawings this is simply illustrated in the ordinary form of a threaded end provided with a nut, the cork being bored to receive the stem 8.

From the foregoing, it will be seen that in operation any suitable bottle of normal shape may be inserted in the bottle support and held securely against displacement by the casing formed and the base support or swinging gate. The same having been placed in position with the acid therein, the plunger may be operated downwardly, forcing the tapering stopper into the neck of the bottle, and thus efiectively sealing the same against discharge, whether or not the device is standing on either end. The head containing the bottled acid may then be screwed onto the main cylinder, and the device ready for use upon releasing the stopper, with the bottle neck in a downwardly-inclining position, the release of the stopper being accomplished by a direct pull on the handle operating the plunger. It will also be seen that the degree of discharge can be controlled, depending upon the degree of movement of the longitudinally-reciprocating plunger rod containing the tapering stopper.

Having thus described the invention, what I claim is 1. The combination of an outer cylinder, a detachable head therefor rovided with a rigidbottle support consisting of dependin arms having 1nwardly-projecting curvec l shoulders adapted to engage the top of the bottle when shoved home, a swinging gate at the base of said support engaging the bottom of the bottle and forcing same home against said curved shoulders, the base of said support being provided with a cylindrical ring having a slotted projection on its base and the top of said swinging gate having a lug on its u per face adapted to ride over the bottom e ge of said base rim and engage the inside thereof when the gate is forced home in said slotted projection to securely lock said gate against ordinary displacement and hold said bottle rigidly against said curved shoulders, substantially as described.

2. The combination of an outer cylinder, a detachable head therefor provided with a rigid bottle support consisting of arms extending downwardly as at 12, thence bent outwardly and downwardly as at 13, the outward bends forming shoulders against upward dis lacement of the bottle when mounted in sai support and said support being provided with circumferentially-c 16 with upwardly-directed longitudinallyprojecting 1nwardly-curved fingers cooperating with said curved shoulders to form additional shoulders in alinement therewith and adapted to engage the upper body of the bottle, a swinging gate 20 at the base of said support cooperating with and adapted to enter the slotted lug 18 on the base of the rim 16 and being rovided with a lug 23 adapted to engage t e inside face of said rim F 16 to prevent ordinary displacement of said gate when closed, substantially as described. In testimony whereof, I afiix my signature, in presence of two witnesses.

WALTER A. HARLAND. Witnesses:

ALEX MORTON, Jos. D. BEALE.

lsposed rims 14 and 

